i recently got a blackberry. Its a at&t phone and i put my cingular sim card...
...in there and i need help....? i put my cingular sim card in the at and t phone. it should work
but it keeps saying invalid sim card. what should i do now? whats wrong
The first poster i right. Its not going to magically work because they both use SIM cards. You either need to match a phone with a SIM card or get it unlocked(finding someone could be a challenge though)
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